inforMED
MalfunctionGQG

CONSULT RSV ANTIGEN TEST

Received Feb 9, 2026 · Event occurred Jan 21, 2026

Report 3009238284-2026-00003 · MDR key 24299188

Device

Generic name

Antigen, Cf (including Cf Controls), Respiratory Syncytial Virus

Catalog number

RSV002PBS

Lot number

2509002RST-T

Product problems

  • False Negative Result

Patient

35 YR · Unknown

  • Insufficient Information

Narrative

Description of Event or Problem

A CUSTOMER REPORTED A SUSPECTED FALSE-NEGATIVE RESULT WHEN TESTING A PATIENT SAMPLE. THE CUSTOMER ALSO INDICATED THAT THE DEVICE POSITIVE CONTROL PRODUCED A NEGATIVE RESULT. THE CUSTOMER REPORTED THAT A PCR METHOD WAS USED FOR CONFIRMATORY TESTING AND YIELDED A POSITIVE RESULT. NO INFORMATION WAS PROVIDED REGARDING THE TIMING OF THE PCR TEST RELATIVE TO THE INITIAL TEST OR WHETHER THE PATIENT WAS SYMPTOMATIC.

Additional Manufacturer Narrative

THE MANUFACTURER HAS COMPLETED THE INVESTIGATION. RETAINED SAMPLES FROM THE AFFECTED LOT WERE TESTED PER ESTABLISHED PROCEDURES, AND NO ANOMALIES WERE OBSERVED. ALL DEVICES MET ACCEPTANCE CRITERIA AND PERFORMED AS INTENDED. NO PRODUCT-RELATED ISSUES WERE IDENTIFIED, AND THE ROOT CAUSE OF THE REPORTED EVENT COULD NOT BE DETERMINED. NOTE: THIS IS THE FINAL REPORT.

Additional Manufacturer Narrative

INVESTIGATION IS IN PROGRESS.

Description of Event or Problem

A CUSTOMER REPORTED A SUSPECTED FALSE-NEGATIVE RESULT WHEN TESTING A PATIENT SAMPLE. THE CUSTOMER ALSO INDICATED THAT THE DEVICE POSITIVE CONTROL PRODUCED A NEGATIVE RESULT. THE CUSTOMER REPORTED THAT A PCR METHOD WAS USED FOR CONFIRMATORY TESTING AND YIELDED A POSITIVE RESULT. NO INFORMATION WAS PROVIDED REGARDING THE TIMING OF THE PCR TEST RELATIVE TO THE INITIAL TEST OR WHETHER THE PATIENT WAS SYMPTOMATIC.